Tuesday, October 05, 2021

Processing mp3 by Python3 in Linux

 

 

$ sudo apt install llvm-8
 

$ locate llvm-config

$ LLVM_CONFIG=/usr/bin/llvm-config-8 pip3 install librosa --user
 

 

packages: llvmlite, numba, soundfile, resampy, audioread, librosa


 

Monday, September 20, 2021

Tuesday, August 31, 2021

Cryptocurrencies Resources

Where to Check

[1] Cryptocurrencies info (BR)  https://investidor10.com.br/criptomoedas/chiliz/

[2] Cryptocurrencies info https://coinmarketcap.com/

[3] https://panoramacrypto.com.br/

[4] Bitcoin https://www.lookintobitcoin.com

[5] Prediction chart https://www.lookintobitcoin.com/charts/stock-to-flow-model/

Where to buy

[1] Choose where to buy by country https://www.buybitcoinworldwide.com/

[2] Exchange in Brazil www.mercadobitcoin.com.br  

Where to Save

[1] Wallet MetaMask (Expensive to transfer in Wallet)

 

Perú

[1] https://fluyez.com/

[2] https://www.buda.com/


Whales

[1] https://www.whalestats.com/


Software

[1] ATANI Windows/MacOS/Linux https://atani.com/download

   
$ sudo apt update
$ sudo apt install snapd
$ sudo snap install core

$sudo snap install atani

 

 

 

 

 

 

 


Thursday, August 19, 2021

OpenGL in Cuda Study

Starting

[1] https://www.geeksforgeeks.org/getting-started-with-opengl/

 


1) http://www.opengl-tutorial.org/beginners-tutorials/tutorial-2-the-first-triangle/

2) https://math.hws.edu/graphicsbook/c3/s4.html

 

 

Thursday, July 15, 2021

Spanish books

 [1] Calculo http://blog.espol.edu.ec/srpinarg/files/2014/05/Calculo-de-Purcell-9na-Edici%C3%B3n.pdf


Wednesday, July 14, 2021

English movie subtitles

 

Game of Thrones Blue Ray sub titles

https://australiapopulation.com/game-of-thrones-season-3-subtitles/

[2] Shifter https://subshifter.bitsnbites.eu/

Thursday, July 01, 2021

Images to PDF file (case study)

0. Previous requeriments

$sudo apt install img2pdf
$sudo apt install ocrmypdf

1. Download images by script

for n in `seq 1 23`
do
  sn=`printf "%02d" $n`
  echo $sn
  wget https://larepublica.cronosmedia.glr.pe/printed/2021/07/01/lima/pages/$sn.jpeg
done
 

2. Convert images to pdf (after executed download script by sh)

$img2pdf *.jpeg --output rep1.pdf #or

$convert *.jpeg rep2.pdf

$ocrmypdf rep1.pdf rep1_ocr.pdf #reduce size

 

Notes for convert command(change from none to read|write):

sudo vim /etc/ImageMagick-6/policy.xml

<policy domain="coder" rights="none" pattern="PDF" />

<policy domain="coder" rights="read|write" pattern="PDF" />
 
 
Bonus
[1] El Pueblo news url https://www.diarioelpueblo.com.pe/wp-content/uploads/2021/07/01-07-2021.pdf
 

Wednesday, June 30, 2021

Challenges

 

https://www.edx.org/course/high-dimensional-data-analysis

Monday, June 21, 2021

Python Settings to use in environments

Solving multiple python instalation:
 
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.5 1

sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.6 2
sudo update-alternatives --config python3
  

Solving:

Error: Command '['/home/DRIVE/Temp/aa/bin/python3.9', '-Im', 'ensurepip', '--upg
rade', '--default-pip']' returned non-zero exit status 1.
 

apt-get install python3.6-dev python3.6-venv
python3.6 -m venv myVenv 

Upgrade pip

pip3 install --upgrade pip
 

 

Friday, June 04, 2021

Saturday, March 27, 2021

Houdini Courses

 

[1] https://www.cgcircuit.com/tutorial/houdini-basics-episode-i

 

Developer postions Brazil

 

[1] https://jobs.kenoby.com/eldorado

 

Friday, March 26, 2021

Houdini18 topics

 

Import libraries

 

/opt/hfs18.0/python/lib/python2.7


 

Asset libraries

Digital assets are stored in digital asset library files, with a .hda extension. (Older versions of Houdini used a .otl extension.) Houdini loads any .hda (or .otl) files it finds in HOUDINIPATH/otls.

Steps:

 1) Create Subnet

 2) Define Parameters and Save .otl

References:

[1] creating an otl on Houdini18 https://www.sidefx.com/tutorials/getting-cozy-with-houdini-engine-lesson-3-creating-our-first-otl/ 

[2] Create digital assets https://www.sidefx.com/docs/houdini/assets/create.html

[2] https://www.youtube.com/watch?v=Q6U_q5PASiU


Tuesday, March 23, 2021

Rendering by Python 3

 

trimesh
trimesh-3.9.10-py3-none-any.whl

pyrender
pyrender-0.1.45-py3-none-any.whl

Dependences:
  PyOpenGL==3.1.0
  PyOpenGL-3.1.0.tar.gz

  pyglet>=1.4.10
  pyglet-1.5.15-py3-none-any.whl

  freetype-py
  freetype_py-2.1.0.post1-py2.py3-none-manylinux1_x86_64.whl
 



 

Friday, March 19, 2021

Amazonas deforestation

 

Main page

[1] http://terrabrasilis.dpi.inpe.br/en/home-page/

Dataset

[2] http://www.dpi.inpe.br/prodesdigital/dadosn/

[3] 2005-2009 http://www.dpi.inpe.br/prodesdigital/dadosn/mosaicos/

[4] Image 9GB http://www.dpi.inpe.br/prodesdigital/dadosn/mosaicos/2019/

Wednesday, March 17, 2021

Python set right version to execute 3.6 3.7 3.8

 

 

https://tech.serhatteker.com/post/2019-12/upgrade-python38-on-ubuntu/

https://stackoverflow.com/questions/63823964/importerror-cannot-import-name-sysconfig-from-distutils-usr-lib-python3-8

curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py

python3 get-pip.py --force-reinstall


ModuleNotFoundError: No module named 'apt_pkg' error
sudo apt-get remove python3-apt
sudo apt-get install python3-apt

 

 


ImportError: No module named OpenGL.GL

apt-get install python3-opengl
or  
pip3 install pyopengl --user

As well as:

sudo apt-get install python python-numpy python-opengl python-qt4 python-qt4-gl

 

 

 

 

Monday, March 15, 2021

Cuda on Linux18 (y2021)

After installation don't forget it(.bashrc):

#Cuda 8.0 Settings
export CUDA_HOME=/usr/local/cuda-8.0
export LD_LIBRARY_PATH=${CUDA_HOME}/lib64  
PATH=${CUDA_HOME}/bin:${PATH}
#export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:

 

Drivers

[1] Legacy https://www.nvidia.com/en-us/drivers/unix/

To Review (Cuda and Driver)

CUDA 11.2             >= 450.80.02
CUDA 11.1 (11.1.0)     >= 450.80.02
CUDA 11.0 (11.0.3)     >= 450.36.06
CUDA 10.2 (10.2.89)     >= 440.33
CUDA 10.1 (10.1.105)     >= 418.39
CUDA 10.0 (10.0.130)     >= 410.48
CUDA 9.2 (9.2.88)     >= 396.26
CUDA 9.1 (9.1.85)     >= 390.46
CUDA 9.0 (9.0.76)     >= 384.81
CUDA 8.0 (8.0.61 GA2)     >= 375.26
CUDA 8.0 (8.0.44)     >= 367.48
CUDA 7.5 (7.5.16)     >= 352.31
CUDA 7.0 (7.0.28)     >= 346.46

[1] Compatibility  https://docs.nvidia.com/deploy/cuda-compatibility/index.html 

To Review (Cuda and GCC)

CUDA version     Max GCC version
11.1             10.0
11                9
10.1, 10.2    8
9.2, 10.0      7
9.0, 9.1        6
8                  5.3
7                  4.9
5.5, 6           4.8
4.2, 5           4.6
4.1               4.5
4.0               4.4

Cuda Toolkit from 6.5 to 10 and more

[1] https://developer.nvidia.com/cuda-toolkit-archive

Common problems

[1] Can't locate InstallUtils.pm in @INC

$sh ./cuda(your version).run --tar mxvf #for unpack

$cp InstallUtils.pm /usr/lib/x86_64-linux-gnu/perl-base #check path in error message

[2] Messages during Cuda installation

$sudo ./cuda_6.5.14_linux_64.run --override

$sudo ./cuda_xxx.run --override  #to ignore last compiler or related

#During Cuda 6.5

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 340.29?

#During Cuda 8

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 375.26?

#During Cuda 9

Install NVIDIA Accelerated Graphics Driver for Linux-x86_64 384.81?

[3] Adicional  notes

https://forums.dual.sphysics.org/discussion/1324/get-the-gpu-running


[4] How to disable nouveau driver to install NVIDIA drivers

$vi /etc/modprobe.d/blacklist-nvidia-nouveau.conf
blacklist nouveau
options nouveau modeset=0
$sudo update-initramfs -u 
$sudo reboot 

 

 

Friday, March 12, 2021

Ubuntu users tools

 

To hidden (no initial list at login)

sudo vi /var/lib/AccountsService/users/cloud

SystemAccount=true #change this from false to true

References:

[1] add user https://linoxide.com/usr-mgmt/give-normal-user-root-privileges/

[2] hidden user https://swatij.me/hacks/ubuntu/hide-user-from-login-screen-in-ubuntu-14-04.html

Ubuntu Forware port 80

  #!/bin/bash iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT --to-port 8069 iptables -t nat -A PREROUTING -i eth0 -p tc...